The first sign of a cannabis plant’s sex and typically appears during the pre-flowering stage, which is the transition period between vegetative growth and full flowering. Preflowers are small, early structures that emerge at the nodes (where branches meet the main stem) and indicate whether the plant is female (producing pistils) or male (producing pollen sacs). Identifying preflowers is important for growers to determine which plants will produce bracts (female) or need to be removed to avoid pollination (male).
🔊 pree·FLOW·er
In the Wild — Example
The pre-flowers showed pistils at week four of veg so I knew I had all females before flipping.
Have a better example? Suggest one.